/Engine/Plugins/FX/Niagara/Source/NiagaraEditor/Public/ViewModels/NiagaraParameterPanelViewModel.h
virtual [FReply](API\Runtime\SlateCore\Input\FReply) HandleDragDropOperation ( [TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [FDragDropOperation](API\Runtime\SlateCore\Input\FDragDropOperation) > DragDropOperation )